I've always followed the rule of 1 car length for every 10 miles per hour you're going.
I always (sometimes) do three seconds between me and the car in front of me. That automatically adjusts for increased speed.
3 seconds when under 65. 5 seconds when it's raining or I'm moving faster than posted highway speeds. It pisses people off but I'm hauling a ton of steel and plastic around, I'm not going to risk my life and everyone's around me just because some guy is late for work or can't be patient and needs to get where he's going a few seconds before me. People tend to lose the reality of the situation when driving their super fast metal explosion machines.
I leave 2-3 seconds following distance minimum on interstate highways.
"Only a fool breaks the 2 second rule."
I was taught to repeat that phrase, at a normal steady pace, when I saw the back of their car go past something, to use as a marker (a signpost, the end of one of the lines on the road, whatever).
If you finish the phrase after the front of your car has gone past the same marker, then you don't have a big enough braking distance and need to ease off a bit.
My car's "smart cruise control" leaves what seems to be around a car length for every 10 mph, which is what I remember hearing in driving school. Feels a bit excessive in practice, but I also never feel like I'm being an asshole so I'm okay with it.
I was rear ended, HARD once. That distance gave me the space to control both my vehicle, and the one that hit me. It turned a potential multi car, multi lane pileup into a 2 vehicle wreck, either 1 more dinged car.
The space isn't for the 99.999% of the time, but that 0.001% OH FUCK time.
Well you want the automated system to be overly safe usually. It is better than the other way around.
Having more space also gives the driver the to react.
The gap you leave should be speed-dependent and about 2 seconds to allow for reaction time. Yes, this caps the highway's capacity to 0.5 cars per second per lane but roads are inherently inefficient.
I was taught to look when the car in front drives past a landmark like a lamppost, then say to myself "Only a fool breaks the two second rule"
If you pass the lamppost before you finish saying it, you're too close
If you're only two lengths away from the car in front of you while driving at highway speeds, you are tailgating. Back off. It's far more dangerous than speeding.
Help me out with this, because it's driving me crazy. Whenever I leave anywhere close to 2 seconds between me and the car on front of me, someone cuts in, and I'm now too close to them, so I slow down, leaving a 2 second gap, and another cuts in. Rinse, repeat. I end up being the slow ass that everyone keeps zooming around unless I tailgate.
Just... Don't care? Let people in and adjust the distance with them. Driving is an involved process, get a car with adaptive cruise control if you want one that will do exactly that for you.
I guess it's more than just "caring" - I feel that we'd all be a lot safer if we were all going the same speed instead of inviting people to dodge in and out
It would be safer if we were all riding the train/bus. Getting in a car in america is accepting the risk that you share the road with everyone. no matter the qualifications or mental state we still all gotta get to work/grocery store/wherever, and the only way is by ~4000 pound metal speed box.
Worrying about safety on the highway is about making sure you are in situations you can handle and react to, staying attentive to the styles and mental states of other drivers and being a step ahead of the road conditions
It just be that way. Idiots will see your safe following distance as their opportunity to switch lanes. Just keep being the safe one.
If what you’re doing makes idiots angry, feel good about yourself and keep doing it.
When I leave two car lengths, four cars will go into it, and at least one of their drivers will throw a half empty beer can at me.
nothing gets me more pissed off than when I'm driving the speed limit on an open road with an open passing zone, no one coming towards me or ahead of me, and some dipshit decides to ride my ass
Then you need to lift off the accellerator, don't brake check or anything, just slowly slow down.
If the car behind you won't give you enough safety margin to maintain a high speed, then your only option to maintain safety is to reduce your speed so that the safety margin they give you is enough to stop in time for an accident.
Here in Sweden we have plenty of roundabouts, I will use those to also get rid of annoying drivers who just can't manage their distance, if I have someone like that behind me when I get to a roundabout, I just drive a full lap of the roundabout and let them pass.
I will allways let these guys past when I can, they are in a rush to their own accident, and I am not, let them pass and and make them stop being my problem, if I can't find a place to let them pass I will reduce my speed to compensate for their lack of safety margins
Its always a huge pickup truck too. I look in the mirror and just see the front grill
More space means less braking, reducing bunching up. Check this article on traffic waves out
I tend to annoy people by dropping off the gas much sooner for lights than strictly necessary, but by gently slowing I both save gas, wear and depending on the timing of the light I can often even time it to miss the red entirely
It's a nice thought, but it has so many modifiers it's pretty much worthless. Everything from road conditions, to time of day or night, to the size and weight and type of vehicle you are driving, to how old you are affects stopping distance and the interval you should be leaving.
Remember children - Driving should never be "relaxing." It's real work and demands your total concentration to protect yourself and everyone around you. So put the phone down and even turn off the radio. Put your head on a swivel like a fighter pilot. And have an escape plan for every inch you drive.
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